Rotary harrow



(No Model.)

'J. R. BANE.

ROTARY HARROWi No. 272,112. Patented Feb. 13,1883.

. llNrTn STATES PATENT OFFICE.

JAMES R. BANE, or GILROY, OALIFOR v-IA.

ROTARY HARROW.

SPECIFICATION forming part of Letters Patent No. 272,112, dated February13, 1883.

Application filed May 23,1882. (No model.)

a which the opposite rotation is effected, and in a means for supportingthe barrow-rings to limit the depth to which the teeth may penetrate andto prevent friction.

The object of my invention is to provide an effective and simple barrow.

Referring to the accompanying drawings, Figure 1 is a perspective viewof my 'harrow as it appears when at work. Fig. 2 is a perspective viewof same, showing rollers underneath to prevent friction. Fig. 3 is aperspective of double rollers closed. Fig. 4 shows same open. p

Let U D represent concentric rings or bands, provided suitably withharrow-teeth, as shown.

J represents the arms or spokes of the interior ring, D, and I those ofthe exterior ring, 0, these being bent upward to pass above the others.Through the arms J and the arms I, at the center, loosely passes avertical spindle or axle, I), having a sleeve or collar, a, between thetwo sets of arms, to hold them apart. The spindle receives a nut,G,below arms J, and has another collar, B, above arms I. By thisconstruction the rings 0 D are journaled separately upon a centralspindle, and may reenter sockets in the arm a, and thus to secure thetongue to the spindle. The object of this construction is to provide aconnection between the tongue and spindle which shall be operative onlywhen the barrow is in actual use, but which shall immediately becomedisconnected when not in use. This is to prevent the undue weight of thetongue upon the harrow. When the tongue is raised to the neck-yoke thepins i engage arm a, and the tongue is fast to the spindle; but when itis dropped the pins become disengaged and the tongue may be removed.

E is an arm or rod, the head of- Which is journaled upon the spindle band firmly secured thereto by a set-screw, T. This arm projects to thespace between the two rings 0 D, and there receives the leg of aninverted-T shaft, (marked F,) and secured by two nuts, M and N, asshown. The arms of this T-shaft carry rollers o and u, the former ofwhich pressesupon top ofthe ring D and the latterpresses up under ring0, as shown in Fig. 1. The rings 0 and D are by this means elevated atopposite sides, and in their travel against the rollers are made torevolve in opposite directions.

I have thus far described no means for transporting the device withfacility, or for limiting the depth of the teeth and preventingfriction.

In Figs. 3 and 4 I show a set of rollers, 31 y, journaled on rods 0 c,the ends of said rods having bearings in the ends of rods 7c 70, whosepasses the other rod 0, and on the end of said bar R isa small roller,ac, which. rests beneath extends down from draft-tongue A, and carries aroller, 0, upon its end, which lies beneath ring 0 and aids insupporting it. When the rollers y y are brought toward each other thecentral spider, P, which supports the spindle, is 'raised by means ofrods k k, and the tooth carrying rings are raised or lowered to any ring0 and aids in supporting it. A rod, H,

desired degree to control the depth to which the teeth will enter theground, or to raise them entirely above the surface when the barrow isto be transported by ruunin g on the rollers y y.

In Fig. 2 is shown a support, L, with single rollers, and an armcarrying a rod, S, which may be used in lieu of the double rollers toregulate the depth of the teeth. -The bar It, by means of the slot 2,limits the degree of approach or separation of rollers y y.

A seat, WV, may be bolted by means of a spring, V, to the arm a of thespindle, and the weight of the driver be sustained duringtransportation. 3

It is obvious that by placing the rollers 22 and it both above or bothbelow the rings these latter may be made to revolve in the samedirection. This is preferable on side hills.

I am aware that barrows have been known in which concentric rings aremade to revol 'e in opposite directions by means of elevating ordepressing opposite sides of the rings, and I am also aware that therehave been wheeled harrows. Ido hotel-aim these ieatures,broadly; but

What I do claim as new, and desire to secure by Letters Patent, is-

1. The concentric'harrow-rings 0 D, having arms I J, and the centralspindle, b, upon which they are independently journaled, in combinationwith the arm E, fixed to the central spindle, b, and the inverted-Tshaft F, secured by its leg in the outer end of arm'E, and having on itsarms rollers v u, pressing one above and the other below said rings,substantially as and for the purpose herein described.

2. The concentric barrow-rings G D and central spindle, 1), upon whichthey are journaled, in combination with the rollers y y, having asupport, k, and a slotted arm, R, with a roller, 00, fitting under andsupporting one of the rings, and the tongue A, having a rod, H, with aroller, 0, fitting under and supporting the other ring, substantially asand for the pur- 4o pose herein described.

In witness whereof I hereunto set my hand.

JAS. R. BANE.

Witnesses:

EDWARD H, FARMER, CHARLES H. REMINGTON.

